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December Weather in Millersburg, United States

Last updated: June 24, 2025

In December, the average temperature in Millersburg, United States hovers around 6°C (42°F). You might experience minimum temperatures dipping down to -5°C (23°F), while the mercury can rise to a pleasant 17°C (63°F). Expect 174 mm (6.8 in) of precipitation spread over 18 days, contributing to a high average humidity of 87%.

December Temperature in Millersburg

In December in Millersburg, the average temperature is 6°C (42°F). Maximums can reach 17°C (63°F), while minimums can drop as low as -5°C (23°F). Be prepared for a wide range of temperatures during your travels!

December Weather in Millersburg: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Millersburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Millersburg, December typically has an average temperature of 6°C (42°F), with highs reaching up to 17°C (63°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec434246525864707165544742
Data source: Temperature data for Millersburg generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Millersburg

In Millersburg in December, the precipitation amount is 174 mm (6.8 in) over a span of 18 days.

December Precipitation Trends in Millersburg

The chart displays monthly precipitation patterns in Millersburg, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Millersburg, December typically receives around 174 mm (6.8 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec1371681191075335245682123174
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Millersburg

In Millersburg in December humidity is 87%. With an average temperature of 6°C (42°F), this humidity feels like a persistent chill that seeps into your bones, making it uncomfortable for traveling and leaving you longing for warmth at every turn.

December Average Humidity in Millersburg

This chart illustrates the average monthly humidity levels in Millersburg, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Millersburg is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Millersburg

In Millersburg in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Millersburg, you can visit Hourly UV Index in Millersburg.

Maximum UV Index Levels in Millersburg for December

The chart shows the monthly maximum UV Index (UVI) for Millersburg in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Millersburg typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23679101097532
Data source: Millersburg December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Millersburg Compares to Other Months

Weather in Millersburg varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Millersburg, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Millersburg, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)137 mm (5.4 inches)85%low
February Weather6°C (42°F)168 mm (6.6 inches)84%moderate
March Weather8°C (47°F)119 mm (4.7 inches)85%high
April Weather11°C (52°F)107 mm (4.2 inches)83%high
May Weather14°C (58°F)53 mm (2.1 inches)83%very high
June Weather18°C (65°F)35 mm (1.4 inches)83%very high
July Weather21°C (71°F)2 mm (0.1 inches)82%very high
August Weather22°C (71°F)4 mm (0.2 inches)74%very high
September Weather18°C (65°F)56 mm (2.2 inches)71%high
October Weather12°C (54°F)82 mm (3.2 inches)81%moderate
November Weather8°C (48°F)123 mm (4.9 inches)87%moderate
December Weather6°C (42°F)174 mm (6.8 inches)87%low

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